Let us break it down, because the card does several things, and it even differs a bit depending on when you play the card
Wedding Announcement / Wedding Festivity Wedding Announcement appropriately marries a token generation engine with a payoff
For promo cards, this is where the event logo will go
Bs blocker wont even take damage, and even in a low-trust situation they only have to risk their worst creature
[Keeping in mind that this is still a variant, and requires permission from every opponent before it applies] Contrary to everything Ive said above, yes you can but everyone (starting with you) needs to obey the same kind of social contract which makes Commander work in the first place
The first game was a disappointment and the second game was a mess, but I still think this list could be fun to play in a slower meta